oj.uz

Submission #974429

# Submission time Handle Problem Language Result Execution time Memory
974429 2024-05-03T10:27:13 Z rolandpetrean Remittance (JOI19_remittance) C++17
100 / 100
 202 ms 60044 KB 
#include <bits/stdc++.h>
using namespace std;

using ll = long long;
#define int ll

#define endl '\n'
#define pb push_back
using pi = array<int, 2>;

const int N = 1e6 + 5, MOD = 1e9 + 7;

int p2[N];
void prec() {
  p2[0] = 1;
  for (int i = 1; i < N; ++i) p2[i] = p2[i - 1] * 2 % MOD;
}
int binpow(int a, int b) {
  int res = 1;
  while (b) {
    if (b & 1) res = res * a % MOD;
    a = a * a % MOD;
    b >>= 1;
  }
  return res;
}
int modinv(int n) {
  return binpow(n, MOD - 2);
}

int32_t main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  
  prec();
  
  int n;
  cin >> n;
  
  vector<int> a(n), b(n), c(n);
  for (int i = 0; i < n; ++i) {
    cin >> a[i] >> b[i];
    c[i] = b[i] - a[i];
  }
  
  vector<int> in(n);
  for (int i = 0; i < n; ++i) {
    in[0] = (in[0] - p2[i] * c[i] % MOD + MOD) % MOD;
  }
  in[0] = (in[0] * modinv(p2[n] - 1) % MOD + MOD) % MOD;
  
  for (int i = 1; i < n; ++i) {
    int x = in[i - 1] - c[i - 1];
    if (x % 2 != 0) {
      cout << "No";
      return 0;
    }
    in[i] = x / 2;
  }
  
  for (int i = 0; i < n; ++i) {
    if (in[i] < 0) {
      cout << "No";
      return 0;
    }
  }
  
  bool pushed = true;
  while (pushed) {
    pushed = false;
    for (int i = 0; i < n; ++i) {
      int j = (i + 1) % n;
      
      int push = min(in[j], a[i] / 2);
      a[i] -= 2 * push;
      in[j] -= push;
      a[j] += push;

      if (push != 0) pushed = true;
    }
  }
  
  for (int i = 0; i < n; ++i) {
    if (in[i] != 0) {
      cout << "No";
      return 0;
    }
  }
  
  cout << "Yes";
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8024 KB Output is correct
2 Correct 5 ms 8028 KB Output is correct
3 Correct 5 ms 8028 KB Output is correct
4 Correct 5 ms 8028 KB Output is correct
5 Correct 6 ms 8068 KB Output is correct
6 Correct 6 ms 8068 KB Output is correct
7 Correct 6 ms 8028 KB Output is correct
8 Correct 5 ms 8028 KB Output is correct
9 Correct 6 ms 8028 KB Output is correct
10 Correct 5 ms 8028 KB Output is correct
11 Correct 5 ms 8028 KB Output is correct
12 Correct 5 ms 8280 KB Output is correct
13 Correct 5 ms 8028 KB Output is correct
14 Correct 5 ms 8028 KB Output is correct
15 Correct 5 ms 8024 KB Output is correct
16 Correct 5 ms 8280 KB Output is correct
17 Correct 5 ms 8028 KB Output is correct
18 Correct 5 ms 8028 KB Output is correct
19 Correct 5 ms 8028 KB Output is correct
20 Correct 5 ms 8184 KB Output is correct
21 Correct 6 ms 8028 KB Output is correct
22 Correct 5 ms 8068 KB Output is correct
23 Correct 5 ms 8028 KB Output is correct
24 Correct 5 ms 8028 KB Output is correct
25 Correct 5 ms 8024 KB Output is correct
26 Correct 5 ms 8028 KB Output is correct
27 Correct 5 ms 8028 KB Output is correct
28 Correct 5 ms 8028 KB Output is correct
29 Correct 5 ms 8028 KB Output is correct
30 Correct 5 ms 8028 KB Output is correct
31 Correct 5 ms 8024 KB Output is correct
32 Correct 6 ms 8284 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8024 KB Output is correct
2 Correct 5 ms 8028 KB Output is correct
3 Correct 5 ms 8028 KB Output is correct
4 Correct 5 ms 8028 KB Output is correct
5 Correct 6 ms 8068 KB Output is correct
6 Correct 6 ms 8068 KB Output is correct
7 Correct 6 ms 8028 KB Output is correct
8 Correct 5 ms 8028 KB Output is correct
9 Correct 6 ms 8028 KB Output is correct
10 Correct 5 ms 8028 KB Output is correct
11 Correct 5 ms 8028 KB Output is correct
12 Correct 5 ms 8280 KB Output is correct
13 Correct 5 ms 8028 KB Output is correct
14 Correct 5 ms 8028 KB Output is correct
15 Correct 5 ms 8024 KB Output is correct
16 Correct 5 ms 8280 KB Output is correct
17 Correct 5 ms 8028 KB Output is correct
18 Correct 5 ms 8028 KB Output is correct
19 Correct 5 ms 8028 KB Output is correct
20 Correct 5 ms 8184 KB Output is correct
21 Correct 6 ms 8028 KB Output is correct
22 Correct 5 ms 8068 KB Output is correct
23 Correct 5 ms 8028 KB Output is correct
24 Correct 5 ms 8028 KB Output is correct
25 Correct 5 ms 8024 KB Output is correct
26 Correct 5 ms 8028 KB Output is correct
27 Correct 5 ms 8028 KB Output is correct
28 Correct 5 ms 8028 KB Output is correct
29 Correct 5 ms 8028 KB Output is correct
30 Correct 5 ms 8028 KB Output is correct
31 Correct 5 ms 8024 KB Output is correct
32 Correct 6 ms 8284 KB Output is correct
33 Correct 5 ms 8024 KB Output is correct
34 Correct 5 ms 8028 KB Output is correct
35 Correct 5 ms 8064 KB Output is correct
36 Correct 5 ms 8028 KB Output is correct
37 Correct 5 ms 8072 KB Output is correct
38 Correct 5 ms 8028 KB Output is correct
39 Correct 5 ms 8028 KB Output is correct
40 Correct 5 ms 8284 KB Output is correct
41 Correct 5 ms 8024 KB Output is correct
42 Correct 5 ms 8284 KB Output is correct
43 Correct 5 ms 8068 KB Output is correct
44 Correct 5 ms 8028 KB Output is correct
45 Correct 5 ms 8028 KB Output is correct
46 Correct 5 ms 8028 KB Output is correct
47 Correct 5 ms 8028 KB Output is correct
48 Correct 5 ms 8024 KB Output is correct
49 Correct 5 ms 8024 KB Output is correct
50 Correct 5 ms 8024 KB Output is correct
51 Correct 6 ms 8028 KB Output is correct
52 Correct 5 ms 8028 KB Output is correct
53 Correct 5 ms 8024 KB Output is correct
54 Correct 5 ms 8028 KB Output is correct
55 Correct 6 ms 8060 KB Output is correct
56 Correct 5 ms 8024 KB Output is correct
57 Correct 5 ms 8024 KB Output is correct
58 Correct 5 ms 8024 KB Output is correct
59 Correct 5 ms 8284 KB Output is correct
60 Correct 6 ms 8028 KB Output is correct
61 Correct 5 ms 8280 KB Output is correct
62 Correct 5 ms 8028 KB Output is correct

Subtask #3
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8024 KB Output is correct
2 Correct 5 ms 8028 KB Output is correct
3 Correct 5 ms 8028 KB Output is correct
4 Correct 5 ms 8028 KB Output is correct
5 Correct 6 ms 8068 KB Output is correct
6 Correct 6 ms 8068 KB Output is correct
7 Correct 6 ms 8028 KB Output is correct
8 Correct 5 ms 8028 KB Output is correct
9 Correct 6 ms 8028 KB Output is correct
10 Correct 5 ms 8028 KB Output is correct
11 Correct 5 ms 8028 KB Output is correct
12 Correct 5 ms 8280 KB Output is correct
13 Correct 5 ms 8028 KB Output is correct
14 Correct 5 ms 8028 KB Output is correct
15 Correct 5 ms 8024 KB Output is correct
16 Correct 5 ms 8280 KB Output is correct
17 Correct 5 ms 8028 KB Output is correct
18 Correct 5 ms 8028 KB Output is correct
19 Correct 5 ms 8028 KB Output is correct
20 Correct 5 ms 8184 KB Output is correct
21 Correct 6 ms 8028 KB Output is correct
22 Correct 5 ms 8068 KB Output is correct
23 Correct 5 ms 8028 KB Output is correct
24 Correct 5 ms 8028 KB Output is correct
25 Correct 5 ms 8024 KB Output is correct
26 Correct 5 ms 8028 KB Output is correct
27 Correct 5 ms 8028 KB Output is correct
28 Correct 5 ms 8028 KB Output is correct
29 Correct 5 ms 8028 KB Output is correct
30 Correct 5 ms 8028 KB Output is correct
31 Correct 5 ms 8024 KB Output is correct
32 Correct 6 ms 8284 KB Output is correct
33 Correct 5 ms 8024 KB Output is correct
34 Correct 5 ms 8028 KB Output is correct
35 Correct 5 ms 8064 KB Output is correct
36 Correct 5 ms 8028 KB Output is correct
37 Correct 5 ms 8072 KB Output is correct
38 Correct 5 ms 8028 KB Output is correct
39 Correct 5 ms 8028 KB Output is correct
40 Correct 5 ms 8284 KB Output is correct
41 Correct 5 ms 8024 KB Output is correct
42 Correct 5 ms 8284 KB Output is correct
43 Correct 5 ms 8068 KB Output is correct
44 Correct 5 ms 8028 KB Output is correct
45 Correct 5 ms 8028 KB Output is correct
46 Correct 5 ms 8028 KB Output is correct
47 Correct 5 ms 8028 KB Output is correct
48 Correct 5 ms 8024 KB Output is correct
49 Correct 5 ms 8024 KB Output is correct
50 Correct 5 ms 8024 KB Output is correct
51 Correct 6 ms 8028 KB Output is correct
52 Correct 5 ms 8028 KB Output is correct
53 Correct 5 ms 8024 KB Output is correct
54 Correct 5 ms 8028 KB Output is correct
55 Correct 6 ms 8060 KB Output is correct
56 Correct 5 ms 8024 KB Output is correct
57 Correct 5 ms 8024 KB Output is correct
58 Correct 5 ms 8024 KB Output is correct
59 Correct 5 ms 8284 KB Output is correct
60 Correct 6 ms 8028 KB Output is correct
61 Correct 5 ms 8280 KB Output is correct
62 Correct 5 ms 8028 KB Output is correct
63 Correct 171 ms 39448 KB Output is correct
64 Correct 112 ms 43268 KB Output is correct
65 Correct 202 ms 58380 KB Output is correct
66 Correct 113 ms 43348 KB Output is correct
67 Correct 122 ms 44680 KB Output is correct
68 Correct 126 ms 47112 KB Output is correct
69 Correct 185 ms 58756 KB Output is correct
70 Correct 95 ms 43400 KB Output is correct
71 Correct 105 ms 44884 KB Output is correct
72 Correct 115 ms 47112 KB Output is correct
73 Correct 176 ms 58756 KB Output is correct
74 Correct 104 ms 43604 KB Output is correct
75 Correct 100 ms 44736 KB Output is correct
76 Correct 113 ms 47188 KB Output is correct
77 Correct 173 ms 58704 KB Output is correct
78 Correct 143 ms 51084 KB Output is correct
79 Correct 125 ms 51080 KB Output is correct
80 Correct 145 ms 51076 KB Output is correct
81 Correct 133 ms 51204 KB Output is correct
82 Correct 94 ms 43352 KB Output is correct
83 Correct 85 ms 43600 KB Output is correct
84 Correct 97 ms 43348 KB Output is correct
85 Correct 202 ms 60044 KB Output is correct
86 Correct 188 ms 59988 KB Output is correct
87 Correct 154 ms 52284 KB Output is correct
88 Correct 159 ms 52412 KB Output is correct